Ctrl+Out spoilers

Spoilers for my game.

The ending screen asks "Can you do better?" The answer is "no".

While most of the time you have full control of your character, you have no control over what events happen and in what order. Every time you defeat an enemy, every time an enemy hits you, every time you buy something from the shop, etc., is all part of a predetermined order that is out of your control. If you try to defeat an enemy when you're not supposed to, the enemies will all evade you (and teleport if they have to). If you're not supposed to buy a thing, it'll be too expensive and you'll never get the money.

This also means that the stats and score you get at the end of the level are always going to be exactly the same (at least for any particular version of the game).

In addition, there are a few other ways the game fits the theme: